"When people know they are more likely to get a ticket, they're less likely to break the law," Russ Rader, from the Insurance Institute for Highway Safety, said. "Speed cameras are effective because they enforce the law 24/7."

However, the familiar cries from drivers who don't want more cameras watching them say the city is just in it for the money.

"Now I'm creeping because you have to watch everywhere," D.C.-area resident Starr Callahan said. "They're putting them in the median on the roads so you have to watch out for the little box."